Printing cartridge



FIG. 1 is a left side elevational view of a printing cartridge showing my new design.

FIG. 2 is a right side elevational view of a printing cartridge showing my new design.

FIG. 3 is a bottom plan view of a printing cartridge showing my new design.

FIG. 4 is a top plan view of a printing cartridge showing my new design.

FIG. 5 is a front elevational view of a printing cartridge showing my new design.

FIG. 6 is a rear elevational view of a printing cartridge showing my new design. 

The ornamental design for a printing cartridge, as shown. 